Re: [hatari-devel] VDI resolution limits |
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- To: hatari-devel@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [hatari-devel] VDI resolution limits
- From: Christian Zietz <czietz@xxxxxxx>
- Date: Fri, 11 May 2018 16:27:52 +0200
- Autocrypt: addr=czietz@xxxxxxx; prefer-encrypt=mutual; keydata= xsDiBDdn2AURBADksdHVyN55nv0lx4qGx+GQMrbo7zs7lSkAfhkgmgqp84xUeUiWI/kj1on/ wxkmJ96Yzt0ktDbZYM0C9Z66M3rLfXE1vXALHhegeMuOy/tVWybcohRrhfB7tmANTESJOZke 0lZZ59DcIfFoqLYErb6qX8nLPYnOv6sFubxnhuF9QQCg/3GaIR1sVK9Xq+b4B9BtVxd7cHMD /i2hAEOX3WY3K7PNZJziYF54uBbGiVS88W41l1RARcaeogIZcAKpFH3on+Tf60fAC85MCp17 QIeP44hj4Cf46B+UTVhf3EFG4IOsLRxUonpt7dKO8txsKFN/OFsjlPOuDyg7XMpEWkTWZetm HC9/0pcApIXSDnggde4T8AX6nn/+A/4hBOhPxuvkV7Uw/ebLYwXrLo2vt9OvvC1VfeywNseq PIkFX/+n/+niBS+Cb2ess2SVQNKJ9vP5+vBxg5AMfQXqk1ONldGQ/ARHmL6+Iuo47mO51e7R i691hq13wHUvyKh1AN7fpKI2m3YW55XEQ+3iTMIZcqfjr6xYgG8GJTppdc0gQ2hyaXN0aWFu IFppZXR6IDxjemlldHpAZ214Lm5ldD7CYwQQEQIAIwIZAQIeAQIXgAUCVGD5IgcLCQgHAwIB BhUIAgkKCwQWAgMBAAoJEFLLl/ZtoCXKubQAoIHNaurSMQB8MHDoTk3B7WHk2ApoAJ0egA8q aNoVj0kU4+OjeGzFiSHMOs7BTQQ3Z9gFEAgA9kJXtwh/CBdyorrWqULzBej5UxE5T7bxbrlL OCDaAadWoxTpj0BV89AHxstDqZSt90xkhkn4DIO9ZekX1KHTUPj1WV/cdlJPPT2N286Z4VeS Wc39uK50T8X8dryDxUcwYc58yWb/Ffm7/ZFexwGq01uejaClcjrUGvC/RgBYK+X0iP1YTknb zSC0neSRBzZrM2w4DUUdD3yIsxx8Wy2O9vPJI8BD8KVbGI2Ou1WMuF040zT9fBdXQ6MdGGze MyEstSr/POGxKUAYEY18hKcKctaGxAMZyAcpesqVDNmWn6vQClCbAkbTCD1mpF1Bn5x8vYlL IhkmuquiXsNV6TILOwACAgf+JhucyZDzOWGht9e0U71kC2bxIOr4iz+ADd3sxS62okrocHXp B9zYDhmJ74BFfC7xMd9bwWNj7YR0yiUdOzY27OcXcEkVmhVBW6AqxuRAKfmYMvvnyR5z5OP6 vg2YSzgOmooc5vequa5YIjLmFkuRlglLiEgdW9gPBFtirNqxOtAqSxEcRrblSn8JBEU51Ii6 SVVuo1nXOP11g8rVO4YvEED89pHT4jgLZu4th1N+mDumNZlqyUIxZ4tQyw3X2OWvEbKWGn2j h0ZywaomUTpVA+wiwxndawP40oowFYT8LNeLtfZyq6xPpQmT2DaNhP4gdy3qkDfnmXkc2zFM YukXo8I/AwUYN2fYBVLLl/ZtoCXKEQKA3QCfTJstYzXurbt9ZnoTU3SFQQmG0/wAoNX91nWM nsS7JOepPAzOUoke4AIi
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Eero Tamminen schrieb:
> Any idea why these mouse related reads happen only with VDI mode,
Do the reads really happen only with VDI mode? After all, in standard
resolutions on the ST, TOS keeps 768 bytes of distance from the end of
RAM. It sets the screen base to RAM-0x8000, but the screen only needs
32000 (=0x7D00) bytes. So even if TOS reads past the screen buffer, it
does not cause a bus error.
Regards
Christian
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Christian Zietz - CHZ-Soft - czietz@xxxxxxx
WWW: http://www.chzsoft.de/
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